The garments you wear during a shortage of underwear, when you haven't done laundry in several weeks or months. Usually characterized by lack of elasticity, holes (usually large and awkwardly located), stains, and typically are at least 5 - 10 years old. In some cases soccer shorts, underwear of unknown origin, thongs, bathing suit bottoms, or 'granny panties' can be considered famine underwear, but do not necessarily meet the above criteria.

I haven't done laundry in weeks, so I'm wearing my famine underwear, the boxers I made in home economics in middle school.